Proposal for Drell-Yan Measurements of Nucleon and Nuclear Structure with the FNAL Main Injector

Document #:

Projects-doc-558-v1

Document type:

Report

Submitted by:

Paul E. Reimer

Updated by:

Paul E. Reimer

Document Created:

08 Jun 2009, 11:58

Contents Revised:

08 Jun 2009, 11:58

DB Info Revised:

08 Jun 2009, 12:02

Abstract:

We propose measuring the fractional momentum (x) dependence of the ratio of the anti-down to anti-up quark distributions in the proton [dbar(x)/ubar(x)] using proton induced Drell-Yan reactions at 120 GeV. Recent measurements by FNAL E-866 unexpectedly show considerable x dependence in this ratio for x >0.2. A lower energy primary proton beam from the Main Injector makes it possible to extend the E-866 measurements to larger x with much higher precision The apparatus will also be used with nuclear targets to measure parton energy loss and modifications to anti-quark distributions in nuclear targets at large x (x > 0.2).

Files in Document:

• proposal.pdf (437.0 kB)
• proposal.ps (1.1 MB)

Topics:

• E906:Public Documents:Proposals

Authors:

• Paul E. Reimer